https://meta.discourse.org/t/user-notes-plugin/41026/
This plugin gives staff members the ability to attach notes to users.
Whenever the user posts, a little note icon will appear beside their name if they have any staff notes. Clicking on it will reveal the notes other staff members have left.
Follow our Install a Plugin howto, using
git clone https://github.com/discourse/discourse-user-notes.git as the plugin command.
Once you've installed it, review the settings under admin and then enable
user_notes_enabled.
Clearing browser cache might be required when first installed
If you have issues or suggestions for the plugin, please bring them up on Discourse Meta.
MIT